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Finding the Fourth Proportional to 61,399.71, 84,726.54 and 34,536.87

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Solution

The fourth proportional to 61,399.71, 84,726.54 and 34,536.87 is: 47,658.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,399.71 : 84,726.54 = 34,536.87 : x
  2. Step 2: Convert to fraction form
    61,399.71/84,726.54 = 34,536.87/x
  3. Step 3: Cross multiply
    61,399.71x = 84,726.54 × 34,536.87
  4. Step 4: Simplify right side
    61,399.71x = 2,926,189,497.53
  5. Step 5: Solve for x
    x = 2,926,189,497.53/61,399.71
  6. Step 6: Final answer
    x = 47,658.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.